In a nutshell, how does an Aeroseal air duct seal work?
Basically: 1. Preseal test to measure the leakage as a baseline for measuring progress. 2. Aeroseal air duct sealing a. Block off the registers with foam or plastic. b. Pump an aerosol into the duct system. c. Since the air has no place to go except out through the leaks (the registers are blocked), the sealant material is deposited precisely at the air duct holes where leakage occurs. d. A computer and sensors are used to measure and control the progress. The technology is patented from the University of California and the process is endorsed by the Environmental Protection Agency. 3. Postseal test to measure improvements. 4. Room airflow measurements to verify improvements. 5.